US20080110662A1 - Electrical junction box - Google Patents
Electrical junction box Download PDFInfo
- Publication number
- US20080110662A1 US20080110662A1 US11/984,142 US98414207A US2008110662A1 US 20080110662 A1 US20080110662 A1 US 20080110662A1 US 98414207 A US98414207 A US 98414207A US 2008110662 A1 US2008110662 A1 US 2008110662A1
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- US
- United States
- Prior art keywords
- fuse
- main body
- electrical junction
- junction box
- power source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
- H02G3/02—Details
- H02G3/08—Distribution boxes; Connection or junction boxes
- H02G3/086—Assembled boxes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0238—Electrical distribution centers
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/02—Arrangements of circuit components or wiring on supporting structure
- H05K7/026—Multiple connections subassemblies
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/20—Bases for supporting the fuse; Separate parts thereof
- H01H2085/2075—Junction box, having holders integrated with several other holders in a particular wiring layout
- H01H2085/208—Junction box, having holders integrated with several other holders in a particular wiring layout specially adapted for vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
- H01H85/02—Details
- H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
- H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
- H01H85/044—General constructions or structure of low voltage fuses, i.e. below 1000 V, or of fuses where the applicable voltage is not specified
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S439/00—Electrical connectors
- Y10S439/949—Junction box with busbar for plug-socket type interconnection with receptacle
Definitions
- the present invention relates to an electrical junction box mounted on a vehicle or the like.
- Various electronic components such as a head lamp, a tail lamp, a starter motor and the like are generally mounted on a vehicle.
- junction block For supplying electricity to the various electronic components, junction block is disposed on a proper position of the vehicle.
- the junction block integrally includes many electric parts such as fuses and relays.
- the junction block may include a fuse, a relay, and a bus bar
- the junction block is also referred to as a fuse block, a relay box, or an electrical junction box (for example, see Patent Document 1 and 2).
- the junction box is referred to as the electrical junction box.
- the electrical junction box described in the Patent Document 1 and 2 includes a box main body, and a wiring block.
- the box main body is made of insulating synthetic resin, and formed in a box shape.
- a mounting part on which the electric parts such as a relay or a fuse are mounted, and a connecting part to which a connector of a wiring harness is connected are disposed on the box main body.
- the box main body receives the wiring block.
- the wiring block includes a first bus bar to be connected to a battery as a first power source, a second bus bar to be connected to a generator as a second power source, a fuse to connect the first and second bus bars, and a connecting terminal.
- the first and second bus bars are made of conductive plate metal.
- Each of the first and second bus bars includes a power source connecting part to be connected to the battery or the generator, and a terminal part to be positioned in the mounting part when the box main body receives the wiring block and to be connected to the electric parts such as the relay or the fuse.
- the fuse connects the first and second bus bars at positions away from the power source connecting parts.
- a part of the connecting terminal is positioned in the mounting part and connected to the electric parts such as the relay or the fuse.
- the other part of the connecting terminal is positioned in the connecting part and connected to the connector of the wiring harness.
- the wiring block electrically connects the power sources, the electric parts, and electric wires of the wiring harness according to a predetermined pattern. Then, the electrical junction box supplies electricity to the electronic components connected to the wiring harness.
- Patent Document 1 Japanese Published Patent Application No. H10-241547
- Patent Document 2 Japanese Published Patent Application No. 2001-155618
- a width of each bus bar should be large through the full length thereof in a conventional electrical junction box.
- an object of the present invention is to provide an electrical junction box that can be small-sized.
- an electrical junction box including:
- a first bus bar having a first connection to be connected to a first power source
- a second bus bar having a second connection to be connected to a second power source
- first and second fuse connections respectively disposed close to the first and second connections and respectively connecting the fuse to the first and second bus bars.
- the first and second connections are respectively connected to the first and second power sources when bolts respectively penetrate the first and second connections.
- first and second fuse connections are respectively overlapped with the first and second connections in a longitudinal direction of the bolts.
- the electrical junction box further includes a box main body receiving the first and second bus bars.
- the box main body includes a fuse receiving chamber for receiving the fuse connected to the fuse connection, and an inspection hole penetrating an outer wall of the fuse receiving chamber for allowing the fuse to be seen from an outside of the box main body.
- the inspection hole is an oblong hole extended straight in the longitudinal direction of the bolt.
- FIG. 1 is a perspective view showing an electrical junction box according to a first embodiment of the present invention
- FIG. 2 is an exploded perspective view of the electrical junction box shown in FIG. 1 ;
- FIG. 3 is a perspective view showing the electrical junction box shown in FIG. 1 of which a side cover is removed from a main body thereof;
- FIG. 4 is a perspective view showing a cassette block of the electrical junction box shown in FIG. 2 , terminal fittings, and the like;
- FIG. 5 is a perspective view showing the cassette block of the electrical junction box shown in FIG. 2 , a wiring block, and the like;
- FIG. 6 is a plan view showing the wiring block shown in FIG. 5 ;
- FIG. 7 is a partially sectional perspective view taken on line VII-VII in FIG. 3 .
- FIG. 1 An electrical junction box 1 according to an embodiment of the present invention will be explained with reference to FIGS. 1 to 7 .
- the electrical junction box 1 shown in FIG. 1 is mounted on a vehicle.
- the electrical junction box 1 includes a box main body 2 and a wiring block 3 .
- the box main body 2 includes a main body 4 , a cassette block 5 , a not-shown upper cover, a lower cover 6 , and a side cover 7 .
- the main body 4 is made of insulating synthetic resin, and molded by a well-known injection molding machine. As shown in FIG. 2 , the main body 4 is formed in a tubular shape with a plurality of outer walls 8 standing in a row. Further, partition walls 9 partitioning the main body 4 are mounted on the main body 4 .
- a mounting part on which relays and fuses are mounted is formed at an upper side of the main body 4 .
- a connector connecting part to which a not-shown connector of a wiring harness is connected is formed at a lower side of the main body 4 .
- the wiring harness includes a plurality of electric wires and a connector attached to ends of the electric wires.
- the connector is connected to the connector connecting part or various electronic components mounted on a vehicle.
- the main body 4 receives bus bars electrically connecting the electric parts mounted on the mounting part to terminals of the connector connected to the connector connecting part.
- the cassette block 5 is made of insulating synthetic resin, and as shown in FIGS. 4 and 5 , formed in a box shape.
- the cassette block 5 is received in the main body 4 via a lower opening thereof shown in FIG. 2 .
- Slit-shaped bus bar receiving grooves for receiving later-described bus bars 21 , 22 of the wiring block 3 are formed on the cassette block 5 .
- the mounting part on which relays and fuses are mounted is formed at an upper side of the cassette block 5 .
- the connector connecting part to which the not-shown connector of the wiring harness is connected is formed at a lower side of the cassette block 5 .
- terminal attaching parts 12 are formed at the upper side of the cassette block 5 .
- the terminal attaching parts 12 are disposed at edges of the bus bar receiving grooves. Surfaces of the terminal attaching parts 12 are flat. Not-shown nuts are buried under the terminal attaching parts 12 .
- the upper cover is made of insulating synthetic resin, and molded by the well-known injection molding machine.
- the upper cover is formed in a tube shape having a top wall with a plurality of outer walls.
- the upper cover is attached to the main body 4 in a manner that the upper cover covers the top side of the main body 4 .
- the lower cover 6 is made of insulating synthetic resin, and molded by the well-known injection molding machine. As shown in FIGS. 1 and 3 , the lower cover 6 is formed in a tube shape having a bottom wall with a plurality of outer walls 14 . The lower cover 6 is attached to the main body 4 in a manner that the lower cover 6 covers the bottom side of the main body 4 .
- the side cover 7 is made of insulating synthetic resin, and molded by the well-known injection molding machine.
- the side cover 7 is attached to the main body 4 and covers the terminal attaching parts 12 of the cassette block 5 attached to the main body 4 .
- the side cover 7 integrally includes a sidewall 15 and a top wall 16 .
- a gap is formed between the outer wall 8 of the main body 4 and the sidewall 15 attached to the main body 4 .
- a gap is formed between the top side of the main body 4 and the top wall 16 attached to the main body 4 .
- the top wall 16 is continued to the sidewall 15 .
- the side cover 7 covers the terminal attaching parts 12 and the terminal fittings 11 attached to the terminal attaching parts 12 .
- a fuse receiving chamber 17 shown in FIG. 5 is formed on the box main body 2 .
- the fuse receiving chamber 17 receives a later-described fuse 23 of the wiring block 3 attached to the cassette block 5 .
- the fuse receiving chamber 17 is surrounded by a plurality of walls (shown in FIGS. 4 and 5 ) near the terminal attaching parts 12 of the cassette block 5 , and the outer walls 8 of the main body 4 .
- An inspection hole 19 shown in FIGS. 2 and 7 is penetrated through the outer wall 8 of the main body 4 composing the fuse receiving chamber 17 .
- the inspection hole 19 is an oblong hole extended straight in a longitudinal direction of the bolt 10 .
- the inspection hole 19 allows the fuse 23 to be seen from an outside of the main body 4 , namely, the box main body 2 . Further, as shown by an alternate long and short dash line in FIG. 7 , the inspection hole 19 allows the fuse 23 to be seen from an upper outside of the main body 4 .
- the sidewall 15 of the side cover 7 attached to the main body 4 covers the inspection hole 19 .
- the relays and the fuses as the electric parts are mounted on the main body 4 and the cassette block 5 attached to the main body 4 .
- the connector of the wiring harness is connected to the box main body 2 .
- the terminal fittings 11 are attached to the terminal attaching parts 12 .
- the upper and lower covers are attached to the main body 4 .
- the box main body 2 receives the relays, the fuses as the electric parts, and the terminal fittings 11 .
- the wiring block 3 includes the first bus bar 21 , the second bus bar 22 , the fuse 23 , and a not-shown connecting terminal.
- the first and second bus bars 21 , 22 are made of conductive plate metal. As shown in FIGS. 5 and 6 , each of the bus bars 21 , 22 includes an electric parts connecting part 24 and a power source connecting part 25 .
- the electric parts connecting part 24 includes a pair of parallel parts 26 parallel to each other, and a connecting part 27 connecting both ends of the parallel parts 26 , and is formed in a U-shape in a plan view.
- the parallel parts 26 are disposed in the mounting part of the cassette block 5 , and have a plurality of terminals 28 to be connected to the relays and fuses.
- a width H of the electric parts connecting part 24 is constant throughout a full length thereof.
- the power source connecting part 25 integrally includes a fuse connecting piece 29 as a fuse connecting part, and a connecting piece 30 as a connecting part.
- the fuse connecting piece 29 is formed in a band plate shape, and overlappingly attached to the connecting part 27 of the electric parts connecting part 24 .
- a nut 32 into which a fuse fixing bolt 31 is screwed is integrally formed on the fuse connecting piece 29 .
- Each connecting piece 30 stands from an edge at an upper side of the fuse connecting piece 29 as shown in FIG. 5 . Therefore, the fuse connecting piece 29 is overlapped with the connecting piece 30 in a longitudinal direction of the bolt 10 . Namely, the fuse connecting piece 29 is disposed in the vicinity of the connecting pieces 30 . A through hole 33 for inserting the bolt 10 is formed on the connecting pieces 30 .
- a length L of the power source connecting part 25 (also referred to as a length of the fuse connecting piece 29 ) is larger than the width H of the electric parts connecting part 24 .
- the terminal fitting 11 connected to a generator as a first power source via an electric wire 34 is attached to the connecting piece 30 of the power source connecting part 25 of the first bus bar 21 .
- the terminal fitting 11 connected to a battery as a second power source via the electric wire 34 is attached to the connecting piece 30 of the power source connecting part 25 of the second bus bar 22 .
- the fuse 23 includes a main part 35 having a fuse element, and a pair of terminals 36 extended away from each other. A hole for inserting the fuse fixing bolt 31 is formed on each terminal 36 .
- the pair of terminals 36 is, of course, connected to the fuse element.
- One terminal 36 of the fuse 23 is overlapped with the fuse connecting piece 29 of the power source connecting part 25 of the first bus bar 21 , and the other terminal 36 is overlapped with the fuse connecting piece 29 of the power source connecting part 25 of the second bus bar 22 . Then, the bolt 31 is screwed into the nut 32 via the hole. Thus, the fuse 23 connects the first and second bus bars 21 , 22 . When an electrical current over a predetermined current value flows through the bus bars 21 , 22 , the fuse element is melted to interrupt the electrical current between the bus bars 21 , 22 .
- a part of the connecting terminals are disposed in the mounting part of the cassette block 5 to be connected to the relays and the fuses, and the other part of the connecting terminals are disposed in the connecting part of the cassette block 5 to be connected to the terminals of the wiring harness.
- the electric parts connecting parts 24 of the bus bars 21 , 22 are mainly received in the bus bar receiving grooves.
- the fuse connecting pieces 29 of the power source connecting parts 25 and the fuse 23 are received in the fuse receiving chamber 17 .
- the connecting pieces 30 of the power source connecting parts 25 are overlapped with the terminal attaching parts 12 .
- the wiring block 3 is attached to the cassette block 5 .
- the first and second bus bars 21 , 22 are received in the cassette block 5 of the box main body 2 .
- the wiring block 3 is connected to the generator and the battery via the terminal fittings 11 and the electric wires 34 .
- the wiring block 3 electrically connects the power source, the electric parts, and the various electronic components connected to the wiring harness according to a predetermined pattern. Then, the wiring block 3 supplies the electric power from the power source to the various electronic components via the electric parts.
- each bus bar 21 , 22 is connected near the connecting pieces 30 . Namely, an electric powers flowing away from the connecting pieces 30 of the bus bars 21 , 22 can be reduced. Therefore, a width H of each bus bar 21 , 22 is not needed to be large through the full length thereof. In particular, the width H away from the connecting pieces 30 can be reduced. Therefore, the bus bars 21 , 22 can be small-sized, and resultingly, the electrical junction box 1 can be small-sized.
- the electrical junction box 1 can be further small-sized.
- the inspection hole 19 is formed on the outer wall 8 of the fuse receiving chamber 17 , the fuse 23 in the fuse receiving chamber 17 can be seen, and whether the fuse 23 is melted or not is easily known.
- the fuse 23 in the fuse receiving chamber 17 can be seen from an oblique direction in the longitudinal direction of the bolt 10 .
- the fuse 23 can be seen from a wire range, and whether the fuse 23 is melted or not is further easily known.
- the connecting pieces 30 and the fuse connecting piece 29 are overlapped with each other in the longitudinal direction of the bolt 10 .
- the connecting pieces 30 and the fuse connecting piece 29 may not be overlapped with each other.
- the fuse connecting piece 29 is at least disposed in the vicinity of the connecting pieces 30 .
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- Connection Or Junction Boxes (AREA)
- Fuses (AREA)
Abstract
Description
- This application is on the basis of Japanese Patent Application No. 2006-308951, the contents of which are hereby incorporated by reference.
- 1. Field of the Invention
- The present invention relates to an electrical junction box mounted on a vehicle or the like.
- 2. Description of the Related Art
- Various electronic components such as a head lamp, a tail lamp, a starter motor and the like are generally mounted on a vehicle.
- For supplying electricity to the various electronic components, junction block is disposed on a proper position of the vehicle. The junction block integrally includes many electric parts such as fuses and relays.
- Incidentally, because the junction block may include a fuse, a relay, and a bus bar, the junction block is also referred to as a fuse block, a relay box, or an electrical junction box (for example, see
Patent Document 1 and 2). Hereafter in this specification, the junction box is referred to as the electrical junction box. - The electrical junction box described in the
Patent Document - The box main body receives the wiring block. The wiring block includes a first bus bar to be connected to a battery as a first power source, a second bus bar to be connected to a generator as a second power source, a fuse to connect the first and second bus bars, and a connecting terminal.
- The first and second bus bars are made of conductive plate metal. Each of the first and second bus bars includes a power source connecting part to be connected to the battery or the generator, and a terminal part to be positioned in the mounting part when the box main body receives the wiring block and to be connected to the electric parts such as the relay or the fuse.
- The fuse connects the first and second bus bars at positions away from the power source connecting parts. A part of the connecting terminal is positioned in the mounting part and connected to the electric parts such as the relay or the fuse. The other part of the connecting terminal is positioned in the connecting part and connected to the connector of the wiring harness.
- In the electrical junction box, the wiring block electrically connects the power sources, the electric parts, and electric wires of the wiring harness according to a predetermined pattern. Then, the electrical junction box supplies electricity to the electronic components connected to the wiring harness.
- [Patent Document 1] Japanese Published Patent Application No. H10-241547
- [Patent Document 2] Japanese Published Patent Application No. 2001-155618
- Because the fuse connects the bus bars at positions away from the power source connecting parts in the electrical junction box, a large electric current flows through an almost full length of each bus bar. Therefore, for preventing the bus bars from heating, a width of each bus bar should be large through the full length thereof in a conventional electrical junction box. When the bus bar becomes wide through the full length thereof, the bus bar, namely, the wiring block becomes large, and the electrical junction box becomes large.
- Accordingly, an object of the present invention is to provide an electrical junction box that can be small-sized.
- In order to attain the object, according to the present invention, there is provided an electrical junction box including:
- a first bus bar having a first connection to be connected to a first power source;
- a second bus bar having a second connection to be connected to a second power source;
- a fuse connecting the first and the second bus bars;
- first and second fuse connections respectively disposed close to the first and second connections and respectively connecting the fuse to the first and second bus bars.
- Preferably, the first and second connections are respectively connected to the first and second power sources when bolts respectively penetrate the first and second connections. Further, the first and second fuse connections are respectively overlapped with the first and second connections in a longitudinal direction of the bolts.
- Preferably, the electrical junction box further includes a box main body receiving the first and second bus bars. Further, the box main body includes a fuse receiving chamber for receiving the fuse connected to the fuse connection, and an inspection hole penetrating an outer wall of the fuse receiving chamber for allowing the fuse to be seen from an outside of the box main body.
- Preferably, the inspection hole is an oblong hole extended straight in the longitudinal direction of the bolt.
- These and other objects, features, and advantages of the present invention will become more apparent upon reading of the following detailed description along with the accompanied drawings.
-
FIG. 1 is a perspective view showing an electrical junction box according to a first embodiment of the present invention; -
FIG. 2 is an exploded perspective view of the electrical junction box shown inFIG. 1 ; -
FIG. 3 is a perspective view showing the electrical junction box shown inFIG. 1 of which a side cover is removed from a main body thereof; -
FIG. 4 is a perspective view showing a cassette block of the electrical junction box shown inFIG. 2 , terminal fittings, and the like; -
FIG. 5 is a perspective view showing the cassette block of the electrical junction box shown inFIG. 2 , a wiring block, and the like; -
FIG. 6 is a plan view showing the wiring block shown inFIG. 5 ; and -
FIG. 7 is a partially sectional perspective view taken on line VII-VII inFIG. 3 . - An
electrical junction box 1 according to an embodiment of the present invention will be explained with reference toFIGS. 1 to 7 . Theelectrical junction box 1 shown inFIG. 1 is mounted on a vehicle. - As shown in
FIG. 1 , theelectrical junction box 1 includes a boxmain body 2 and awiring block 3. - As shown in
FIG. 1 , the boxmain body 2 includes amain body 4, acassette block 5, a not-shown upper cover, alower cover 6, and aside cover 7. Themain body 4 is made of insulating synthetic resin, and molded by a well-known injection molding machine. As shown inFIG. 2 , themain body 4 is formed in a tubular shape with a plurality ofouter walls 8 standing in a row. Further,partition walls 9 partitioning themain body 4 are mounted on themain body 4. - A mounting part on which relays and fuses are mounted is formed at an upper side of the
main body 4. A connector connecting part to which a not-shown connector of a wiring harness is connected is formed at a lower side of themain body 4. - The wiring harness includes a plurality of electric wires and a connector attached to ends of the electric wires. The connector is connected to the connector connecting part or various electronic components mounted on a vehicle. The
main body 4 receives bus bars electrically connecting the electric parts mounted on the mounting part to terminals of the connector connected to the connector connecting part. - The
cassette block 5 is made of insulating synthetic resin, and as shown inFIGS. 4 and 5 , formed in a box shape. Thecassette block 5 is received in themain body 4 via a lower opening thereof shown inFIG. 2 . Slit-shaped bus bar receiving grooves for receiving later-describedbus bars wiring block 3 are formed on thecassette block 5. - The mounting part on which relays and fuses are mounted is formed at an upper side of the
cassette block 5. The connector connecting part to which the not-shown connector of the wiring harness is connected is formed at a lower side of thecassette block 5. - Further, two
terminal attaching parts 12 are formed at the upper side of thecassette block 5. Theterminal attaching parts 12 are disposed at edges of the bus bar receiving grooves. Surfaces of theterminal attaching parts 12 are flat. Not-shown nuts are buried under theterminal attaching parts 12. - Later-described connecting
pieces 30 of the bus bars 21, 22, andelectric contact parts 13 of terminal fittings 11 (shown inFIG. 4 ) are sequentially overlapped on surfaces of theterminal attaching parts 12. Then,bolts 10 are screwed into the nuts via throughholes 33 formed on the connectingpieces 30 and holes 13 a of theelectric contact parts 13. Thus, theelectric contact parts 13 of theterminal fittings 11 are caught between the connectingpieces 30 and thebolts 10. Thus, theterminal fittings 11 are attached to theterminal attaching parts 12. - The upper cover is made of insulating synthetic resin, and molded by the well-known injection molding machine. The upper cover is formed in a tube shape having a top wall with a plurality of outer walls. The upper cover is attached to the
main body 4 in a manner that the upper cover covers the top side of themain body 4. - The
lower cover 6 is made of insulating synthetic resin, and molded by the well-known injection molding machine. As shown inFIGS. 1 and 3 , thelower cover 6 is formed in a tube shape having a bottom wall with a plurality ofouter walls 14. Thelower cover 6 is attached to themain body 4 in a manner that thelower cover 6 covers the bottom side of themain body 4. - The
side cover 7 is made of insulating synthetic resin, and molded by the well-known injection molding machine. Theside cover 7 is attached to themain body 4 and covers theterminal attaching parts 12 of thecassette block 5 attached to themain body 4. As shown inFIGS. 1 and 2 , theside cover 7 integrally includes asidewall 15 and atop wall 16. - A gap is formed between the
outer wall 8 of themain body 4 and thesidewall 15 attached to themain body 4. A gap is formed between the top side of themain body 4 and thetop wall 16 attached to themain body 4. - The
top wall 16 is continued to thesidewall 15. When theside cover 7 is attached to themain body 4, theside cover 7 covers theterminal attaching parts 12 and theterminal fittings 11 attached to theterminal attaching parts 12. - Further, a
fuse receiving chamber 17 shown inFIG. 5 is formed on the boxmain body 2. Thefuse receiving chamber 17 receives a later-describedfuse 23 of thewiring block 3 attached to thecassette block 5. Thefuse receiving chamber 17 is surrounded by a plurality of walls (shown inFIGS. 4 and 5 ) near theterminal attaching parts 12 of thecassette block 5, and theouter walls 8 of themain body 4. Aninspection hole 19 shown inFIGS. 2 and 7 is penetrated through theouter wall 8 of themain body 4 composing thefuse receiving chamber 17. - The
inspection hole 19 is an oblong hole extended straight in a longitudinal direction of thebolt 10. Theinspection hole 19 allows thefuse 23 to be seen from an outside of themain body 4, namely, the boxmain body 2. Further, as shown by an alternate long and short dash line inFIG. 7 , theinspection hole 19 allows thefuse 23 to be seen from an upper outside of themain body 4. Thesidewall 15 of theside cover 7 attached to themain body 4 covers theinspection hole 19. The relays and the fuses as the electric parts are mounted on themain body 4 and thecassette block 5 attached to themain body 4. The connector of the wiring harness is connected to the boxmain body 2. Theterminal fittings 11 are attached to theterminal attaching parts 12. The upper and lower covers are attached to themain body 4. Thus, the boxmain body 2 receives the relays, the fuses as the electric parts, and theterminal fittings 11. - As shown in
FIGS. 5 and 6 , thewiring block 3 includes thefirst bus bar 21, thesecond bus bar 22, thefuse 23, and a not-shown connecting terminal. - The first and second bus bars 21, 22 are made of conductive plate metal. As shown in
FIGS. 5 and 6 , each of the bus bars 21, 22 includes an electricparts connecting part 24 and a powersource connecting part 25. The electricparts connecting part 24 includes a pair ofparallel parts 26 parallel to each other, and a connectingpart 27 connecting both ends of theparallel parts 26, and is formed in a U-shape in a plan view. Theparallel parts 26 are disposed in the mounting part of thecassette block 5, and have a plurality ofterminals 28 to be connected to the relays and fuses. A width H of the electricparts connecting part 24 is constant throughout a full length thereof. - The power
source connecting part 25 integrally includes afuse connecting piece 29 as a fuse connecting part, and a connectingpiece 30 as a connecting part. Thefuse connecting piece 29 is formed in a band plate shape, and overlappingly attached to the connectingpart 27 of the electricparts connecting part 24. Anut 32 into which afuse fixing bolt 31 is screwed is integrally formed on thefuse connecting piece 29. - Each connecting
piece 30 stands from an edge at an upper side of thefuse connecting piece 29 as shown inFIG. 5 . Therefore, thefuse connecting piece 29 is overlapped with the connectingpiece 30 in a longitudinal direction of thebolt 10. Namely, thefuse connecting piece 29 is disposed in the vicinity of the connectingpieces 30. A throughhole 33 for inserting thebolt 10 is formed on the connectingpieces 30. - A length L of the power source connecting part 25 (also referred to as a length of the fuse connecting piece 29) is larger than the width H of the electric
parts connecting part 24. The terminal fitting 11 connected to a generator as a first power source via anelectric wire 34 is attached to the connectingpiece 30 of the powersource connecting part 25 of thefirst bus bar 21. The terminal fitting 11 connected to a battery as a second power source via theelectric wire 34 is attached to the connectingpiece 30 of the powersource connecting part 25 of thesecond bus bar 22. - The
fuse 23 includes amain part 35 having a fuse element, and a pair ofterminals 36 extended away from each other. A hole for inserting thefuse fixing bolt 31 is formed on each terminal 36. The pair ofterminals 36 is, of course, connected to the fuse element. - One
terminal 36 of thefuse 23 is overlapped with thefuse connecting piece 29 of the powersource connecting part 25 of thefirst bus bar 21, and theother terminal 36 is overlapped with thefuse connecting piece 29 of the powersource connecting part 25 of thesecond bus bar 22. Then, thebolt 31 is screwed into thenut 32 via the hole. Thus, thefuse 23 connects the first and second bus bars 21, 22. When an electrical current over a predetermined current value flows through the bus bars 21, 22, the fuse element is melted to interrupt the electrical current between the bus bars 21, 22. - A part of the connecting terminals are disposed in the mounting part of the
cassette block 5 to be connected to the relays and the fuses, and the other part of the connecting terminals are disposed in the connecting part of thecassette block 5 to be connected to the terminals of the wiring harness. - The electric
parts connecting parts 24 of the bus bars 21, 22 are mainly received in the bus bar receiving grooves. Thefuse connecting pieces 29 of the powersource connecting parts 25 and thefuse 23 are received in thefuse receiving chamber 17. The connectingpieces 30 of the powersource connecting parts 25 are overlapped with theterminal attaching parts 12. Thus, thewiring block 3 is attached to thecassette block 5. Namely, the first and second bus bars 21, 22 are received in thecassette block 5 of the boxmain body 2. When theterminal fittings 11 are attached to theterminal attaching parts 12, thewiring block 3 is connected to the generator and the battery via theterminal fittings 11 and theelectric wires 34. - Further, when the
cassette block 5 is attached to themain body 4, electric parts are mounted on the mounting part, and the terminals of the wiring harness are connected to the connecting part, thewiring block 3 electrically connects the power source, the electric parts, and the various electronic components connected to the wiring harness according to a predetermined pattern. Then, thewiring block 3 supplies the electric power from the power source to the various electronic components via the electric parts. - According to this embodiment, because the
fuse 23 is connected near the connectingpieces 30, a large electric current is prevented from flowing through an almost full length of eachbus bar pieces 30 of the bus bars 21, 22 can be reduced. Therefore, a width H of eachbus bar pieces 30 can be reduced. Therefore, the bus bars 21, 22 can be small-sized, and resultingly, theelectrical junction box 1 can be small-sized. - Because the
fuse connecting piece 29 is overlapped with the connectingpieces 30 in the longitudinal direction of thebolt 10, a space around the connectingpieces 30 can be used effectively. Therefore, theelectrical junction box 1 can be further small-sized. - Because the
inspection hole 19 is formed on theouter wall 8 of thefuse receiving chamber 17, thefuse 23 in thefuse receiving chamber 17 can be seen, and whether thefuse 23 is melted or not is easily known. - Because the
inspection hole 19 is oblong, thefuse 23 in thefuse receiving chamber 17 can be seen from an oblique direction in the longitudinal direction of thebolt 10. Thus, thefuse 23 can be seen from a wire range, and whether thefuse 23 is melted or not is further easily known. - In the embodiment described above, the connecting
pieces 30 and thefuse connecting piece 29 are overlapped with each other in the longitudinal direction of thebolt 10. However, according to the present invention, the connectingpieces 30 and thefuse connecting piece 29 may not be overlapped with each other. Namely, according to the present invention, thefuse connecting piece 29 is at least disposed in the vicinity of the connectingpieces 30. - Although the present invention has been fully described by way of example with reference to the accompanying drawings, it is to be understood that various changes and modifications will be apparent to those skilled in the art. Therefore, unless otherwise such changes and modifications depart from the scope of the present invention hereinafter defined, they should be construed as being included therein.
Claims (4)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2006-308951 | 2006-11-15 | ||
JP2006308951A JP5074744B2 (en) | 2006-11-15 | 2006-11-15 | Electrical junction box |
Publications (2)
Publication Number | Publication Date |
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US20080110662A1 true US20080110662A1 (en) | 2008-05-15 |
US7670184B2 US7670184B2 (en) | 2010-03-02 |
Family
ID=39326546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/984,142 Active US7670184B2 (en) | 2006-11-15 | 2007-11-14 | Electrical junction box |
Country Status (5)
Country | Link |
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US (1) | US7670184B2 (en) |
JP (1) | JP5074744B2 (en) |
CN (1) | CN101183772B (en) |
CA (1) | CA2604368C (en) |
DE (1) | DE102007048888B8 (en) |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5088940A (en) * | 1989-10-24 | 1992-02-18 | Yazaki Corporation | Electrical junction device |
US5438310A (en) * | 1992-09-04 | 1995-08-01 | Yazaki Corporation | Fuse box |
US6333846B1 (en) * | 1999-04-27 | 2001-12-25 | Yazaki Corporation | Power supply shut-off apparatus |
US6456188B1 (en) * | 1999-11-25 | 2002-09-24 | Yazaki Corporation | Connecting structure of a fuse link and external terminals |
US7347733B2 (en) * | 2005-10-21 | 2008-03-25 | Yazaki Corporation | Electric junction box |
US7357649B2 (en) * | 2005-07-14 | 2008-04-15 | Sumitomo Wiring Systems, Ltd. | Electrical junction box for motor vehicle |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3026729B2 (en) | 1994-12-27 | 2000-03-27 | 矢崎総業株式会社 | Parts fixing structure of electrical junction box |
JP3916283B2 (en) * | 1997-02-26 | 2007-05-16 | 矢崎総業株式会社 | Junction box |
JP3640755B2 (en) | 1997-03-05 | 2005-04-20 | 矢崎総業株式会社 | Wire connection structure to fusible link and wire connection method |
JP3175650B2 (en) * | 1997-07-08 | 2001-06-11 | 住友電装株式会社 | Terminal mounting structure in electrical junction box |
JP2000332446A (en) | 1999-05-21 | 2000-11-30 | Sumitomo Wiring Syst Ltd | Electrical connection box |
DE60008347T2 (en) | 1999-12-03 | 2004-12-02 | Sumitomo Wiring Systems, Ltd., Yokkaichi | fuse box |
JP2002315149A (en) * | 2001-04-12 | 2002-10-25 | Yazaki Corp | Electrical junction box |
JP2005168178A (en) * | 2003-12-02 | 2005-06-23 | Sumitomo Wiring Syst Ltd | Electric connection box |
JP2006107965A (en) * | 2004-10-06 | 2006-04-20 | Yazaki Corp | Fuse block |
JP4588522B2 (en) * | 2005-04-25 | 2010-12-01 | 矢崎総業株式会社 | Electrical junction box |
-
2006
- 2006-11-15 JP JP2006308951A patent/JP5074744B2/en active Active
-
2007
- 2007-09-26 CA CA2604368A patent/CA2604368C/en not_active Expired - Fee Related
- 2007-10-11 DE DE102007048888.4A patent/DE102007048888B8/en active Active
- 2007-11-07 CN CN2007101698152A patent/CN101183772B/en active Active
- 2007-11-14 US US11/984,142 patent/US7670184B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5088940A (en) * | 1989-10-24 | 1992-02-18 | Yazaki Corporation | Electrical junction device |
US5438310A (en) * | 1992-09-04 | 1995-08-01 | Yazaki Corporation | Fuse box |
US6333846B1 (en) * | 1999-04-27 | 2001-12-25 | Yazaki Corporation | Power supply shut-off apparatus |
US6456188B1 (en) * | 1999-11-25 | 2002-09-24 | Yazaki Corporation | Connecting structure of a fuse link and external terminals |
US7357649B2 (en) * | 2005-07-14 | 2008-04-15 | Sumitomo Wiring Systems, Ltd. | Electrical junction box for motor vehicle |
US7347733B2 (en) * | 2005-10-21 | 2008-03-25 | Yazaki Corporation | Electric junction box |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102035160A (en) * | 2009-10-01 | 2011-04-27 | 矢崎总业株式会社 | Electric junction box and power supply device having the same |
CN102035159A (en) * | 2009-10-01 | 2011-04-27 | 矢崎总业株式会社 | Electric junction box and power supply device having the same |
CN102394451A (en) * | 2011-07-25 | 2012-03-28 | 胡国英 | Fuse socket and fuse switch |
WO2013105675A1 (en) * | 2012-01-13 | 2013-07-18 | Yazaki Corporation | Connection structure for a screw block |
US20140312031A1 (en) * | 2012-01-13 | 2014-10-23 | Yazaki Corporation | Junction box |
US9287639B2 (en) | 2012-01-13 | 2016-03-15 | Yazaki Corporation | Connection structure for a screw block for fitment with a component attachment block |
US9331462B2 (en) * | 2012-01-13 | 2016-05-03 | Yazaki Corporation | Junction box |
US20130330982A1 (en) * | 2012-06-08 | 2013-12-12 | Lear Corporation | Electrical junction box connections |
US8961198B2 (en) * | 2012-06-08 | 2015-02-24 | Lear Corporation | Electrical junction box connections |
US11394187B2 (en) * | 2019-12-05 | 2022-07-19 | Yazaki Corporation | Electric connection box and wire harness |
Also Published As
Publication number | Publication date |
---|---|
CN101183772B (en) | 2011-08-24 |
DE102007048888B8 (en) | 2022-02-17 |
CN101183772A (en) | 2008-05-21 |
DE102007048888A1 (en) | 2008-05-29 |
CA2604368A1 (en) | 2008-05-15 |
JP5074744B2 (en) | 2012-11-14 |
JP2008125317A (en) | 2008-05-29 |
DE102007048888B4 (en) | 2021-10-28 |
US7670184B2 (en) | 2010-03-02 |
CA2604368C (en) | 2014-04-22 |
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